Type-writing machine.



Patented J an. 23, 1917.

' INVENTOR' :ATTORNJ.

1 UNITED STAT S PATENT "OFFICE.

rnrmamcx a 1mm, or mawanx, NEW mnsnr, ASSIGNOB, BY unsm: Assmmnrs, 'romnnwoon conru'rmc uacrmm 001mm, or new Yonx, 11.1., a conro RAT-ION 01'NEW YORK.

'rYrE-wm'rmo nacnnm.

Patented Jan. 23, 1917.

. application filed larch 80, 1915. Serial Io. 17,908.

X To all whom it may concern:

Be it known that I, Fnuonmcx A. HART,

a citizen of the United States, residing in chines, of which tion.

Newark, in the county of Essex and State of New Jersey,

have invented certain new and useful Improvements inTypeJVriting Mathefollowing is a specifica- This invention relates to means for squarinthe leading edges of work-sheets w1th re ation to. theprlnting line onthe platen of a typewriting machine, and to closed a gage for means forfeeding the work-sheets.

"A feature of the invention is to provide improved means at the deliveryside of the platen for s uaring the work-sheets thereon, together witmeans for feedin the sheets accurately after they have passe beyond thecontrol of the usual platen feed rolls, thereby enabling the printing tobe extended to the bottom edge of the work-sheet.

A paper squaring table for the work-sheets may be located at thedelivery side of the platen and extend upwardly and rearwardly from theplaten to form a support for the work-sheets as they are adjusted to asquaring ga e at the upper ed of the table. A work-s eat-feeding coup emay comprise feed rolls above and beneath-the: squaring table, the lowerfeed rolls projecting through openin in the table to bring the bite ofthe rolls su stantially in the plane of the upper surface of the tablefor holding and feeding the work-sheets while the latter are supportedon the table. The table, or a portion thereof, may extend thework-feeding couple in position to guide the leadin edge of the work tothe bite of the rolls w en the work is advanced by the rotation "of theplaten. The said feed rolls may be'separated to permit placing andadjustment of thework-sheets on the table or their removal from themachine, and the paper squarin gage at the upper end of the tableenables t prlnting line on the platen.

In the McCormack Patent 929,158, is disthe leading edges of the beingmounted above the platen at the to of an upstanding plate upon which theeading edges of the sheets are adjusted, and said gage is movable out ofthe path of the sheets. It is found in performing a certainclass of workthat sufisheets, said gage,

appear to between the platen and e operator to square the leading edgesof the sheets with respect to the cient accuracy of register is notmaintained among the several sheets when they are drawnaround theplaten, even though they i i whereby the outer sheet travels at adifferent speed from the inner sheet as the platen revolves; all thesheets being, in said McCormack. patent, pressed against the platen torevolve therewith. Where man copies have to be made simultaneously, anwhere each sheet is provided with horizontal "rulings with which it isintended that the type impressions shall register, it is found thatperfeet register of the type impressions with".

the ruled lines is not secured, owing to the aforesaid difference inspeed of travel of the outer sheets relatively to the inner sheets,whereby the ruled lines upon the outer sheets creep in respect to thoseupon the mner sheets. Thus when a number of sheets are fed togetheraround the platen there is a tendency for the leadi end of the outersheet or sheets to creep re atively to the leading ends of the innersheets, owing to the v greater are through which they must travel, I onaccount of their greater distance from the axis of the platen. As aresult, the leading edges of the sheets, if gaged before being advancedaround the platen, are, when the sheets are brought to printingposition, separated or stepped, with the innermost sheets a substantialdistance out of register with the outer sheets. With the sheets thus outof register, the types will not print at the same relative position onthe several sheets. If the sheets are ruled and the outer sheet 'isbrought with a ruled line to the printing line of the platen so that theprinting line extends along the ruled line, duplicated printing on theunderlying sheets, will be out of register with the rulmgs aof saidunderlying sheets, In the present invention this dlfliculty is overcome,because when the several sheets are adjusted to the gage, the rulingsthereof are. inaccurate register, and this is maintained. The coopertheprinting line at the same f vance feed rolls are geared be fed betweenthem at the same surface speed as that of the platen; and when theadvance feed rolls are used for the urpose of feeding a pack ofhorizontal y-ruled sheets which must be kept in accurate register, theusual bottom feed rolls may be cast off, so as not to force the sheets aainst the platen, which would interfere wi uniform feeding of all thesheets which is effected by said advance rolls. When the machine is usedfor other purposes, the bottom feedrolls may press the sheet or-sheetsagainst the platen, and the advance rolls may be either working. orreleased, as circum- 1 having eccentric bearings in the ends of theplaten frame, said shaft rotatable by a hand crank to separate the rollsor return them to operative position.

The feed rolls may be positively driven from the platen by a gear traincomprising a gear on the platen and intermeshing gears on the shafts ofthe feeding couple, whereby both members of the couple are ositivelydriven. The provision for positive y driving both members of the coupleis of value-in securing a reliable and positive feeding of thework-pieces, and is-of special importance when the platen is of greatlength. The said feeding couple may coiiperate with the usual platenfeed rolls running on the under surface ofthe platen, to feed theWork-sheets over the platen, and also positively operates to feed thework-sheets and hold them in alinement on the platen after the loweredges of the work-sheets have passed beyond the platen feed rolls. Thework-sheets may thus be fed forward, and the printing con tinued to thebottom of the sheets, or as close to the bottom as desired. 1

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of theinvention applied to an Underwood typewriting machine. Fig. 2 is asectional end elevation view. Fig. 3 is an end elevation with the papergage in operative position, and the rolls of the feeding coupleseparated. Fig. 4

is a similar view with the gage thrown to its inoperative position, andthe feed rolls in operative position.

The platen 5 is mounted on an axle 6 journaled in the ends of a platenframe 7,

p the lattermounted on a carriage 8'. Types 9 are '0 erated in the usualmanner, to strike upwar ly and rearwardly against the front the face ofthe platen to print on work-sheets 10.

. The platen ma be rotated for'line-spacing laten ax e. The (platen mayalso be rotated y the usual han wheels 14 on the platen axle. Front andrear feed rolls 15 and 16 run on the under surface of the platen andcooperate with the latter to feed worksheets around theunder surface ofthe platen and upwardly past the printing line. These feed rolls may bethrown off the platen by. a key 17 connected through a link 18 to a rockshaft 19 formed with flats or cams 20 to rotate levers 21 carrying thefeed rolls, so that when the key 17 is depressed, the rolls are thrownoff the platen.

The parts thus far-described may be of the usual construction found inthe commercial Underwood machine.

A paper adjusting and squaring table or plate 22, which may be mountedon the platen frame, extends upwardly and rearwardly from the front faceof the platen. A paper squaring gage 23 carried on -brackets 24, may beswung forwardly (by means hereinafter described) from the Fig. 2position to the Fig. 3 position, in which it projects forward past thesurface of the table and parallel with the printing line to enable theoperator, by bringing the leading edges of the work-sheets against thegage, to.

square the sheets with relation to the printing line on the platen. Thegage 23 is operated in conjunction with a work-sheetfeeding couple,comprising rolls 25 over the table 22, and rolls 26 beneath the table,and projecting through openings in the table, the line of contact of therolls 2:") and 26 being substantially in: the plane of the table surface so that the rolls grip the work-sheet while the latter lies flat onthe table.

The upper and lower rolls 25 and 26 are respectively mounted onhollow-shafts 27 and 28, said hollow shafts being loosely mounted onshafts 29 and 30, the latter supported in brackets 31 and 32 on theplaten frame The mounting for the shaft 29 comrises an'eccentric 33fixed to said shaft and 3ournaled in the bracket 31, and a sleeve 34fixed to the shaft eccentric thereto and journaled in the bracket32. Acrank 35 .is fixed to the shaft 29 and provided with a handle 36 torotate the shaft, and thereby move, the feed rolls 25 .into and out ofengagement with the rolls 26. A spring 37 connected to the crank 35holds the latter in either position, and a stop 37 on the sleeve 34limits the throw of the crank-in the direction to separate the rolls.The crank 35 also serves to throw the gage 23 into and out of operativeposition, and for this purpose the brackets 24 which carry the gage arefixed to rock arms 39 on a rock shaft 40. A link movement of ,thefshafte H and 26 are separated, ad swi g t 3 t W9 6 9g tlqn When the feedrolls25 a e eturned to operat ve position, the gage hmmwtha g-l n 80 ahwass ge worken b i o n heft a0, but the arrangement v ,ior purposes ofcona ws emb g x ,25"and 2 6 are positively train comprising a gearpinion 43 secured to the shaft 44 securedto the shaft ed oils 2 and 26are thus positheplaten is rotated in of the gear 41 has prefd1 as thep1aten,,and mes itam circles r h n, Marehkewise preferablyequal i l thefeed rolls' 26 and 25, feed rolls to be driven atthe rnighlmbe, efiectedvby other argf 'gears The positive 25,;ghy, means,'of the gear train isa positive feed of the c ,arly where the platen is w rk ec l n fingersaroll 51 to bear lr-pieces on the, platen, may the carriage 8 to tallyto inoperative 'tion.

,th vzork to be positioned on laten feedrolls 16 are Yfljl'fill bydepressin the key 5his swung to t e left to ed lls'25, 26. The workMpositioned, with the edges of the sheets are M 1 8 8 s' 3 e "sheets,with,relation to the e v, a 1 many shae s mv e u y, 1f sud have 9horizontal mlmgs o h to hexreason, it is unneces- B, al law,- omhe vanceroll s employed iorwfeedmg the efloottom rolls 15, 16, are

ac, sheets .upwardly beyond Blit if Sheets in the pack d roll 15.

; and the advance rolls 25, 26, are

,itheIpIaten axle, an idler I sheetsbelng about tangentlal to the platenrolls, nor arethey curved around theintro as the platen,,althoughresting on the table 22 it Is advanced during the writing operation, itis, over the table 22 and gripped bythe feed rolls 25, 26. As the tare:a t

a thevrifihmffthe P M 'i9 8 6 m y a fiybi the $1111! m flsfif fr 1 $070that they the sheets around the platen by holding the sheets thereonedepended; upon for the pack of sheets the platen, thr dighout thewriting-[of the age. These advance 170113 25, 2,6,]are'so p aoed withrelation to the printing line that the sheets standinsubstantiallystraight positionfrom the printing line to andbeyond the rolls,thestraight and rolls, j that is, the sheets are not curved around theplaten to any appreciable extent between the printing line and theductory side of either roll, and hence it follows that afterthe'sheetsare onc'e gaged together against the leading ed e 23 andcaught in the grip of said ro is 25, 26, they must advance each to thesame extent throughout the writing of the page, and hence, at theprinting line, each must re ister with all the others throughout saldwriting ofthe page, even if, below, the print-., a ing line, they happento beout of register where they curve around the undersi e of theplaten. therefore 'Ster at i the printing linethroughout the ent rewriting of the page, the result is secured that all, the carbonimpressions, as wellas the ink ribbon impressions, fall accurately; uponthe horizontal rulings upon all thesheets.

n 11o withdrawn outofthe path of said sheets.

The platen feed rolls 15, 16 are also restored byhfting the key [17. Thework-sheet or sheets may now be ,fed backwardmto the printing line asnear as desired to the leadingedge thereof. If the work is withdrawnfrom the ,feed rolls 2 5, 26 during this backward movement, the platenfeed rolls, 15, 16 hold it against displacement, and as tom oithe sheetapproaches the printing line,"it' may pass beyond the control of theplaten feed roll 15,"but the rollsv 25,26 are still operative to feed itand enable the writingto be continued tothe bottom of the page oras nearthe bottom edge/as desired. The rolls 51' in addition to servingtheinusual function of card or work-piece holders, may also assist the rolls25, 26 in holding sheets closel against the platen after they have passethe'roll 15.

Variations maybe resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim: Y

1. The combination with a rotary laten and means cooperating therewithto eed a work-sheet over the platen, of a work-sheetfeeding couplecomprising feed rolls at the delivery side 'of the platen to engage thev work-sheet -at a point 'in advance of the 15 printing line, a squaringgage located in advance of said couple and against which the leadingedge of the worksheet may be set to square the sheet with reference tothe printing line on the platen, a papersupporting and squaring table onwhich the forward end of the sheet is supported 'while being adjusted tosaid gage, means to separate said feed rolls to permit said adjustmentof the work-sheet, and means to automatically withdraw the squaring gagefrom the path of the work-sheet when said rolls are brought intogripping engagement with the work-sheet.

2. The combination with a rotary platen and worksheet-feeding meanscooperating therewith to advance work-sheets over the platen past theprinting line, the printing line being in advance of said feeding means,

of a pair of feed rolls at the delivery side of the'platen, means toseparate said rolls to permit the adjustment of the work-sheetstherebetween, a gage located beyond said rolls in position to be engagedby the leading edges of the work-sheets, and means to drive said rollsfrom the platen at the surface speed of the platen and thereby assist inadvancing the work-sheets, said rolls op erable to positively feed awork-sheet and maintain it in alinement on the laten' when,

the bottom edge of the -wor -sheet has passed beyond the-saidfirst-mentioned feedmg means, thereby enabling the printing.

to be continued and the alinement of the work-sheet on the platenmaintained iintil the printing has reached the bottom of the work-sheet.

' and work-sheet feeding means cooperating 3. The combination with arotary platen therewith to advance work-sheets over the platen past theprinting line, the printing line being in advance of said feeding means,of a pair of feed rolls at the delivery side of the platen, means todrive said rolls from the platen at the surface speed of the platen andthereby assist in advancing the worksheets, saidrolls operable topositively feed a work-sheet and maintain it in alinement on the platenwhen the bottom edge of the work-sheet has passed beyond the saidfirstmentioned feeding means, thereby enabling theprinting to becontinued and the alinement of the work-sheet on the platen mainbottomof the wor sheet, and a aper-table extending between said feed re s andthe platen and on which the work-sheets are supported and guided.-

4. The combination with a-rotary platen and worksheet-feeding meanscooperating therewith to advance work-sheets over the platen pasttheprinting line the printing line being in advance of said eeding means,of a pair of feed rolls at the delivery side of the platen, means todrive said rolls from the platen at the surface speedhof the platen andthereby assist in advancing the worksheets, said rolls operable topositively feed a work-sheet and maintain it in alinement on the'platenwhen the bottom edge of the work-sheet has passed beyond the saidfirstmentioned feeding means, thereby enabling the printing to becontinued and the alinement of the work-sheeton the platen main-.

tained until the printing has reached the bottom of the Work-sheet, a paer-table extending between said feed r'o ls and .the

, tained until the rinting has reached theplaten and on. which thework-sheets are supported and uided, and a squarin age for the leadinledge of the work-she t rojec'ting past t e surface of the table intothe path of the sheet to enable the sheet to be squared with relation tothe printing line while the sheet is supported on said table.

5. The combination with a rotary platen and work-sheet-feeding meanscooperating therewith to advance work-sheets over the platen past theprinting line the printing line'being in advance of said ceding means,ofa pair'of feed'rolls at the delivery side of the platen, means todrive said rolls from the platen at the surface speed of the platen andthereby assist in advancing the worksheets, said rolls operable topositively feed a work-sheet and maintain it in alinement on the platenwhen the bottom edge of the,

work-sheet has passed beyond the said firstmentioned feeding means,thereby enabling the printing to be continued and the alinement of thework-sheet on the platen maintained until the printing has reached thebottom of the worksheet, a. pa r-table extending between said feed ro lsand the platen and on which the work-sheets are supported and guided, asquaring gage for the leading edge of the work-sheet projecting'past thesurface of the table into the path of the sheet to enable the sheet tobe squared with relation to the printing line while the sheet issupported on said table,

said feed rolls being located between the squaring gage and the printingline on the platen, the line of contact between said rolls beingsubstantially in the plane of the surface of said table, means for seMating said rolls to permit adjustment of sheet, and

a connection; between said last-named means and the I lforautomaticallythrowing the o the; path of thework-sheet when 6 minim brought togetherto feed the T s work-duet.

6, In'a typewriting machine, the combi- V nation with a rotary platen,of a pair of feed at the delivery side of the platen and segsaratedtherefrom, and worksheet-feeding r running onthe laten at the oppositeside of the me from said pair of feed rolls and coiiperating with theplaten to vfeed the work-sheets past the prmting line, said pair ofrolls 0 era-ble to hold the worksheets squared tot e platen and feedthem over the platen at the surface speed of "the platen as the sheet isadvanced beyond the feed rolls on the platen, and so mounted withrelation to each other and to the platen thatthe sheets may extend insubstantially straight condition from the print- 7. In a typewritingmachine, the combination with. a rotary platen, of a pair of feed rollsat, the delivery side of the platen, work-sheet feeding means'at theopposite M side of the printing line from said feed rolls i l 80 andcooperating with the platen to feed work-sheets past the printing line,said feed rolls operable to hold a work-sheet in alinement onthe platen,and to feed the .worksheet over the platen after the bottom edge '85 ofthe sheet-has passed, beyond said feeding means, a s uarin ge for'theleading edge of the wo k shei l dcated beyond said pair of rolls, andmeans for. separating said rolls p to permit a sheet to be squared bysaid gage 40 while positioned between, said rolls.

8; The combination with a rotary platen,

of a feeding couple located at the delivery side of the platemmeans todirect the leading end ofa work-sheet to said couple as it 'is'advancedbeyond the vprintingline, and agear train comprising a'gear on thecouple and a gear connecte to rotate with the platen, thegear trainforming a means for v positively driving said feeding couple at thesurface of the platen when the platen is driven. A

a 9. In a'typewriting machine, the combination with a rotary platen, ofmeans at the delivery side of theplaten and separate f therefromforline-feeding a work-sheet, said means comprising a feed roll to run onthe outer face ofthe ,work-sheet, means to direct the leading edge ofthe work-sheet tosaid i a .p a, feed roll as it'is advanced beyond theplaten, 7 and means for positively driving said roll from theplaten atthe surface speed of the v 10. The comhinati of a pair of feed rolls atthe delivery side n with a rotary platen,

i 35 of the platen for line-feedinga work-sheet support the leading endof the work-sheet to support and guide the leadin the said platen feedrolls.

thereover, means for positively driving. said rollsfrom the platen atthe surface speed of the platen, and a table extending between theplaten and the feed rolls in position to a as it is advanced beyond theprinting line and direct it to the b1te of said rolls.

11'. In a front-strike. writing machine, the combination with arotatable platen having its printing line alo the front face thereof, ofplatenfeed ro ls running on the un-' der surface of the platen, awork-sheetsupporting table extending upwardly and rearwardlyfrom theplaten 'in advance of the printing line, and a pair of feed rollshavingtheir line of contact subtsantially in alinement with the "surfaceof said table, a portion of said table extendingbetween the platen andsaid rolls and forming avmeans I end of a work-sheet from the platentosai rolls, and said rolls' forming means for positively feeding thework-sheet and hold1n it in alinement on the platen after the ottom edgeof the work-sheet has passed beyond 12. In afrontstrike writing machine,the combination with a rotatable platen having its printing'line alongthe front face thereof, of platen feed rolls running on the undersurface of the platen, a work-sheetsupporting table extendingupwardlyand .rearwardly from the platen in advance of the printing line, a pairof feed rolls having "their line of contact substantially in alinementwith the surface of said :table, said table forming a means to so portand guide the leadin end of a work-s eet from the platen to said rolls,and said rolls forming means for positively feeding the worksheet andholding it in alinement on the platen after .thevbottom edge of theworksheet has passed beyond thesaid platen feed rolls, a squaring gageprojecting forward beyond the surface of said table into the path of thework-sheet, means for separatingwsaid feed rolls to permit thework-sheet to be placed therebetween and squared by said gage, and meanscontrolled by said feed roll-separating means for withdrawing the gagefrom the path of the work-sheet when the rolls arebrought together, andrestoring the gage to operative position when the rolls are separated.

13. In a front-strike typewriting machine, the combination of a rollerplaten, a worksheet supporting table extending upwardly and rearwardlyfrom the platen at the delivery side thereof, a worksheet feedin rolloverlying said table and parallel wit the platen to engage the surfaceof the Work-Sheet v e ia the; .nPP-sr a lower edges of said table,shamans; operating with said roll for feeding a work-w 14. In afront-strike typewritingmachine, the combination of a roller platen, aworksheet supporting table extending upwardly for lifting said feedingroll from the table.

I to permit'the work-sheet to be adjusted and its ed e set to said gage.

15. n a front-strike typewriting machine, the combination with arotatable platen, of a work-sheet supporting table extending upwardlyand rearwardly from the platen at the delivery side thereof,a work-sheetfeeding couple comprising one member overlying said table parallel withthe platen in position to engage the upper surface of a work-sheet onsaid table along a line intermediate the upper and lower edges of saidtable, the table being provided with an opening or openings beneath saidmember, the other member of the couple being located beneath the tableand projecting through said 0 ning or openings to cooperate with' therst-.

ip the mentioned member of the couple to Work-sheet and feed it over theta 1e, and means for driving said couple from. the platen at the surfacespeed of the platen.

16. In a front-strike typewriting machine, the combination with arotatable laten, of a work-sheet supporting and guiding table extendingupwardly and rearward] from the platen at the delivery side thereo afeed roll overlying the table and extending parallel with the platen inposition to enga e the upper surface. of a work-sheet on said table, thetable being provided with an opening beneath said roll, a second feedroll beneath the table and projecting through said opening to cooperatewith the first-mentioned roll to grip the work-sheet, line-spacemechanism to rotate the platen, and means operated b the line-spacemechanism to rotate said eed rolls at the surface speed of the platenwhen the line-space mechanismis operated.

17. r In a front-strike typewriting machine, the combination with arotary p aten, of a work-sheet supportin table extending .upwardly andrearward y from the platen at the delivery side thereof, a work-sheetfeeding couple comprising rolls located above and beneath said tablerespectively, the table provided with openings along the line of contactbetween said rolls to permit the rolls to grip the work-sheet, a shafton which the upper rolls are mounted, eccentric bearings is mounted, an

separated, from the platen for advancin for withdrawingsaid gage fromthe-path- 'of the work-sheet when the upper rolls are moved to operativeposition and for pro jecting said gage iinto operative position when therolls are separated 18. The combination with a rotary platen andline-spacing means therefor, of means separated from. the platen foradvancing sheets around the same during the rotation thereof, saidfeeding means comprising a pair of cooperating rolls extending along theplatenfor gripping andadvancing the 1 sheet, said rolls capable ofseparation, to permit adjustment of a sheet or sheets therebetween, agage positioned in advance of the printing line against which the sheetsmay be squared while between the separated rolls,

and gearing between said line-spacing means and said feedin rolls.

19. The comblnation with a rotary laten, of means separated from theplaten fbr advancing sheets around the same during the rotation thereof,said feeding means comprising a pair of cooperating rolls extendingalong the platen and capable of separation, agage positioned to gage asheet while the latter is between the separated rolls, a

n which one of said rolls gearing between said driving shaft and theplaten, inclusive of a pinion on said shaft, and also inclusive of agear on'the platen.

20. The combination with a rotary platen and line-spacing meanstherefor, of means a. sheet around the same during the rotation thereof,said sheet-advancing means comprising a pair of cooperating rollsextending alo the platen forgripping and advancing, 18 516813, toothedgearin between said linespacing means and said ceding rolls, means toeffect separation of said feeding rolls, a

driving shaft u gage in position to square the sheets on the platen andbring their leading edges inreglater while the sheets are positionedbetween the separated feed rolls, and means to withdraw the ga broughttoget er to grip the sheet.

21; In a typewritmg machine, the combination with a rotary p aten andline-spacing mechanism, of a pair of feed rolls at the delive side ofthe platen, saidfeed rolls operab e to hold a work-sheet in alinement onthe platen, gearin between the line-spacing mechanism and ing the latterto line-feed the work-sheet over the laten, a squarin ga e for theleading edge of the work-s eet ocated beyond said pair of rolls, andmeans for sepa- 13o when said feed rolls are e feed rolls foroperatlower edges of the table.

t ed es of the table" ro away from the plane of the table to permitadjustment of the work-sheet be rating said rolls to permit a sheet tobe squared by said gage while positioned between said rolls. 4

22. In a typewriting machine, the combination with a rotary platen, of apair of feed rolls at the delivery side of the platen, said rollsoperable to hold the work-sheets in registerat the printing line on theplaten and feed them past the printing line, the path of the sheets fromthe printing line to the rolls being about straight, a squaring gage forthe leading edges'of the work- 'sheets located beyond said -rolls, saidrolls separable to permit the work-sheets to be a. justed to the gagewhile positioned be- ,tween said rolls, and means to hold said rollsseparated during said adjustment of the sheets.

23. In a front strike typewriting machine, the combination of a rollerplaten, a worksheet-supporting table extending upwardly" and rearwardlyfrom the platen at the de-, livery side thereof, and a worksheet-feedingroll parallel with the platen and overlyin said table to engage theupper surface o the work-sheet intermediate the upper and 24. In afront-strike typewriting machine, the combination of a roller platen, aworksheet-supporting table extend ng upwardlv and rearwardly from theplaten'at the delivery side thereof, a worksheet-folding roll a parallelwith the platen and overlying said table to engage the upper surface ofthe work-sheet intermediate the upper and lower and means to shift saidtweensaid roll and table.

25. .In a front-strike typewriting machine, the'combination of a rol erplaten, a worki sheet-supporting table extending upwardly and rearwardlyfrom the platen at the'd'eliver side thereof, a work-sheet-feeding rollpara el with the laten and overlying said "table to engage t e uppersurface of the work-sheet intermediate the upper and lower means todrive saidroll at the surface edges of the table, means to rotate theplaten,

speed of the platen when said platen-rotating means is operated.

26. In a front-strike typewriting machine,

the combination with a rotary platen, of, a

Worksheet-feeding couple ,comprlsing rolls extending parallel with theplatenand separated therefrom, a shaft on which one of the rolls ismounted, said shaft having eccentric hearings in the platen frame, meansto r0-' tate said shaft to separate said rolls, a age in advance of saidrolls to which the lea ing edge ofthe work-sheet may be adjusted tosquare the sheet on the platen, and means for withdrawing said gage fromthe path of the work-sheet when the rolls are brou ht to sheet-holdingposition and for projecting said gage into operative rolls areseparated.

27. In a typewriting machine, the combination of a platen, aworksheet-feeding couple in advance of the printing line at theworksheets, also inadvance of the printing line, and means to operatesaid couple, to feed sheetspast the printing line, the path of thesheets between the printing line and said couple being about straight,whereby the sheets are retained in accurate register at the printingline.

28. In a typewriting machine, the combination of a platen, awork-sheet-feeding cou-' ple'in advance of the rinting line at theplaten, a g'agefor the eading edges of the work-sheets, alsoin advanceof the printin line, means to operate said cou le to 'fee sheets pastthe printing line, t e path of the sheets between the 'printing hue andsaid couplebeing about straight, whereby the sheets are retained inaccurate register at the printingline, feed rolls running on the platen,means to cast said feed rolls off the position when the platen, a gagefor the leading edges of the a platen, and means'to separate themembersof, said feeding couple independently of the means for casting ofi'theplaten feed rolls.

FREDERICK A. HART;

Witnesses: l a W. 0. Wns'rrrmn,

J ULIUS' Docxs'nnn.

